Hello there,
just like Ckyman says, right now the quest log is messy and doesn't advance with the user after certain points but it's something that is addressed for 1.9
As for important choices, same as said, the screen changes to advise of an important decision. As for others, this is a route game where decisions are mean to have an impact so the game wont advise on what happens for picking a choice(outside as for when sharing or not is involved), if you pay attention to the dialog you'll know where it goes.
